Cooktop



FIG. 1 is a perspective view of a cooktop showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Dashed broken lines are for illustrating unclaimed portions of the cooktop and/or for illustrating an environment related to the claimed design; the dashed broken lines form no part of the claimed design. Dash-dot lines are for illustrating a boundary and do not indicate an end of the cooktop; the dash-dot lines form no part of the claimed design. 

CLAIM I claim the ornamental design for a cooktop, as shown and described. 